I updated few dlls related to my timer job on SharePoint development box and my web application stopped working. Now if I say web application stopped working then I mean when I try to go to web address

"usa999.asdkjas.com" nothing comes up even when try to go to settings by putting "_layouts/settings.aspx" it takes me no where shows a blank page, I looked into ULS log and nothing comes up.

just to mention it was working earlier, we got 2 websites with different IP address and certificates and they both are enabled with SSL.